Muzzle brake



FIG. 1 is a perspective view of a muzzle brake of my new design.

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are included for the purpose of illustrating unclaimed features and form no part of the claimed design. 

CLAIM The ornamental design for a muzzle brake, as shown and described. 